S K Jain
Articles written in Pramana – Journal of Physics
Volume 63 Issue 2 August 2004 pp 207-212
Magnetic behaviour of (Fe0.85Cr0.15)2As
S K Jain A Das Bipin K Srivastava Anjali Krishnamurthy S K Paranjpe
Magnetization and neutron diffraction measurements have been made on the title pseudo-binary of tetragonal anti-ferromagnets Fe2 As and Cr2 As. In this system antiferromagnetic (AFM) ordering appears below 310 K. The moments are confined in the
Volume 81 Issue 1 July 2013 pp 157-167 Research Articles
Microwave power coupling with electron cyclotron resonance plasma using Langmuir probe
S K Jain V K Senecha P A Naik P R Hannurkar S C Joshi
Electron cyclotron resonance (ECR) plasma was produced at 2.45 GHz using 200 – 750 W microwave power. The plasma was produced from argon gas at a pressure of $2 \times 10^{−4}$ mbar. Three water-cooled solenoid coils were used to satisfy the ECR resonant conditions inside the plasma chamber. The basic parameters of plasma, such as electron density, electron temperature, floating potential, and plasma potential, were evaluated using the current–voltage curve using a Langmuir probe. The effect of microwave power coupling to the plasma was studied by varying the microwave power. It was observed that the optimum coupling to the plasma was obtained for $\sim$ 600 W microwave power with an average electron density of $\sim 6 \times 10^{11}$ cm$^{−3}$ and average electron temperature of $\sim$ 9 eV.
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